Bobbin-winding machine



Feb. 6, 1923. 11,444,372.

H. D. ELLIOTT.

BOBBIN WAINDING MACHINE.

FILED APR.2::1, |919.

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Patented ti, llldo HARRY D. ELLIOTT, 0F BEVERLY,

MASSACHUSETTS, ASSIGNOR TO UNITED SHOE new innsnr.

Application filed April 23,

T0 all whom it may concernA Bel it known that I, HARRY D. ELLIOTT, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Bobbin-"Winding Machines; and l do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will envable others skilled in the art to which it appertains to i'nakeand use the same.

This invention relates to bobbin winding machines. p

rThe object of the invention is to improve the construction and inode of operation of machines for winding the bobbins of sewing inachineshuttles, Aand to produce a machine of simple and compact construction by which such bobbins may be quickly and etliciently wound.

Vith this object in view the features of the invention consist in certain novel and `improved constructions, arrangements and Acombinations of Apartshereinafter described and particularly. pointed out in the claims the advantages of which will be readily nnderstood and appreciated by those skilled in the art.

The invention is illustrated in the accomvpanying drawings in its preferred form, and will be readily understood from the drawings taken in connection with the following detailed description of the constructions therein shown.

ln the drawings Figure 1 is a plan view of a machine embodying the various features of the invention; Fig. 2 is a view in front elevation, partly in section, of the machine;

the machine looking from the right.

The'machine illustrated in the drawings is provided with a bobbin carrying or'wind ing shaft 2 journaled in a bearing in a .snp` porting arm eland havingits outer end rer duced to receive a hobbin 6 and diametrically slotted or split so as to held the bobbin frictionally thereon.

The driving mechanism for the winding shaft 2 comprises a shell 8 secured to the inner end of the shaft and a driving disk 10 substantially concentric with and embraced ,by the shell and provided with a peripheral .facing of rubber or other suitable friction material indicated at 12. The driving disk 10 is `mounted on the inner end of a driving vshell 8 is somewhat larger than the periphery BBBIN-W'INING MACHINE.

1919. Serial No. 292,147.

shaft 14 journaled in a bearing in a bushing 16 secured in a supporting frame-work 18, and has a driving pulley 20 mounted on its outer end. The peripheral flange of the of the driving disk 10. A driving connection is established between the shell 8 and the driving disk 10 by moving the shell in a radial direction or in a plane substantially parallel with its plane of rotation from the position shown in the drawings to bring the peripheral flange of the shell into engagement with the periphery of the driving disk, the shell then being driven fi'ictionally from the disk.

' To enable the shell 8 to be moved radially to engage the peripheral flange on the shell with and to disengage the saine from the periphery of the driving disk, the supporting arm 4l, in which the winding shaft is joui'- naled, is pivot-ed at its rear end on a stud 22 secured by means of a set screw 24C in the rear end of a bracket 26 the forward end of which is clamped on the bushing 16. In starting the machine the supporting arn'i el is lifted, thereby bringing the shell 8 into contact with the driving disk 10 at a point below the driving shaft 14, and upon the release of the supportin arm, the arm and the parts supported thereby are swung down.- wardly by gravity to diseneage the shell from the driving disk. Trie downward movement of the shell 8 is limited by means of a projection 2l" formed on a downwardly extending arm of the bracket 26 and arranged to engage the peripheral flange on the shell. The projection 27 is adapted to support the shell 8 in position out of contact and Fig. 3 is a view in side elevation of with the driving disk l0, as shown in the drawings.

ln the present construction the supim'ting arm 4 is held in elevated position to maintain the shell d in driving contact with the driving disk .lO iliuiug the winding of the bobbin by means of a latch. This latch is 100 controlledfroin the thread wound upon the bobbin so that when a predetermined amount of thread is wound on the bobhin the latch is thrown out of operation allowing the arm and the shell-8lto move downwardly to dis- 10.5 engage the shell from the driving disk. A.

spring is interposed between thelatch and the. supporting arm 4LV which, through its action on the arm, maintains the shell 8 in yielding contact with the driving disk durlio ing the winding operation, thereby insuring an effective driving action between the disk and the shell at all times even when the parts become worn by continued use.

The devices for controlling the position of the arm l comprise a lifting lever 28 pivoted on the stud 22 and provided with a laterally bent projection 30 adapted to engage and support the lower end of a spring 82 seated in a recess or pocket in the supporting arm 4f, as shown clearly in Fig. 3. T he downward movement of the lifting lever 28 relatively to the supporting arm 4t under the action of the spring 32 is limited by means of a pin 34 mounted in the arm and arranged to engage a projection on the lever` The lifting lever is provided with a second laterally bent projection 36 to enable said arm to be lifted readily by the operator.

The latch for holding the supporting arm 4t in elevated position is indicated at 38. The latch is pivoted on a stud l0` secured in the downwardly extending arm on the bracket 26, and the upper end of the latch is arranged to engage the under side of the projection 30 on the lifting lever 28 to hold said lever and the supporting arm l in their uppermost positions. The latch is acted upon by a coiled spring Zl2 seated in a pocket in the arm Il, which tends to swing the same rearwardly into acting position. ln order to disengage the latch from benea-th the projection 30 when the bobbin is full of thread, a latch controlling arm let is secured to the central portion or hub of the latch and preferably formed integral therewith and is arranged to engage between the flanges of the bobbin so as to contact with the thread as it is wound on the bobbin.

lVh'en the machine is idle the parts are located substantially in the positions shown in the drawings, the latch 38 being discngaged from beneath the projection 30 on the lifting lever 28, and the peripheral flange on the shell 8 resting on the projection 27. i

In starting the machine the operator grasps the lateral projection 36 on the lifting lever 28 and lifts the same thereby through the spring 32, lifting the supporting arm 4c and carrying the shell 8 into contact with the periphery of the driving disk 10 to start the rotation of the winding shaft. As the lateral projection 30 on the lifting lever 28 is carried above the upper end of the latch 38, the latch is swung rearwardly beneath. said projection by the action of the spring 42 and the arm et is swung upwardly between the anges of the bobbin into position to engage the thread as it is wound thereon. During the winding operation the shell 8 is maintained in yielding contact `with the periphery of the driving disk 10 through the action of the spring 32. As the amount of thread on the bobbin increases the latch controlling arm le-l is swung downwardly through the engagement of the thread therewith, and when a predetermined amount of thread has been wound on the bobbin the latch 38 is disengaged from beneath the lateral projection 30 allowing the lifting lever 28, the supporting arm 4t and the shell 8 to descend under the action of gravity until the shell engages the projection 27, thereby disengaging the shell from driving contact with the driving disk. The projection 27 acts as a brake on the shell 8 to stop the rotation thereof and of the winding shaft. j

Having explained the nature and object of the invention, and having specifically described a machine embodying the invention in its preferred form, what is claimed is:

1. A bobbin winding machine having, in combination, a winding shaft, driving connections therefor comprising a rotary disk member, a rotary shell member closely embracing and substantially concentric with said disk member, a carrier for supporting one of said members movable to carry the latter member radially in a definite path into and out of driving contact with the other member, and means for controlling the position of the movable member from the mass of thread on the winding shaft.

2. A bobbin winding machine having, in combination, a Vwinding shaft, driving connections therefor comprising a rotary disk member, a rotary shell memberl embracing said disk member, a carrier for supporting one of said members movable to carry the latter member radially in a definite path into and out of driving contact with the other member, and means acting on the carrier for holding the movable member yieldingly in driving contact with the other member.

3. A bobbin winding machine having, in combination, a rotary disk member, a rotary shell member embracing said disk member, a winding shaft secured to one of said members., a carrier for the shaft and the latter member mounted for movement to move the latter member radially into and out of driving contact with the other member, and moans for controlling the position of the carrier.

Ll'. A bobbin winding machine having, in combination, a winding shaft, driving connections therefor comprising a` rotary disk .member and a rotary shell member, one of which is arrangedtobe moved upwardly from a certain position to carry the saine into driving contact with, the other member and to be moved downwardly by gravity to carry the same out of driving contact with the other member, a vmovable carrier for the movable member, mea-ns for holding said members yieldingly in driving iso contact, and means for limiting the downward movement of the movable member `under the action of gravity to hold the same in position out of driving Contact with the other member.

5. A bobbin Winding machine having, in combination, a Winding shaft, driving connections therefor comprising a rotary disk member and a rotary shell member, one of which is arranged to be moved in` one direction to carry the same into driving contact with the other` member and to be moved in the other direction to carry the same out of driving` contact with the other member, a movable carrier for the movable member, and an abutment for engagement with the movable member to limit the movement thereof in the latter directionv acting as a brake to arrest the rotation of said member.

G. A bobbin Winding machine having, in combination, a Winding shaft, driving' connections therefor comprising` a rotary disk member, a rotary shell member closely embracing and substantially concentric With said disk member, means for supporting one of said members for movement radially to carry the same into and out of driving contact with the other member, a latch for holding the movable member in driving contact With the other member, and means for controlling the latch.

7. A bobbin winding machine having, in combination, a Winding shaft, driving connections therefor comprisinga rotary disk member, a rotary shell member embracing said disk member, one of which is movable radially to carry the same into and out of driving contact with the other member, a pivoted carrier for the movable member, a lever pivoted coaxially with the carrier, a spring interposed between the carrier and the lever, a latch for engaging the lever to hold the carrier in position with the disk and shell members in driving contact, and means for controlling the latch.

S. A bobbin Winding machine having, in combination, a Winding shaft, driving connections therefor comprising a rotary disk member and aprotary shell member embracing said disk member and mounted to rotate upon an axis substantially parallel with the axis of the disk member, one of which is mounted for movement radially to carry the same into and out of driving contact With the other member, a carrier for the movable member pivoted on an axis substantially parallel with the axis of rotation thereof, a lever pivoted coaXia-lly with the carrier, a

spring interposed between the lever and the carrier, a latch lever pivoted on an axis substantially parallel with the axis of the latter lever and having an arm for engaging the latter lever to hold the carrier in position With the disk and shell members in driving contact, and a second arm for engaging the thread Wound on the bobbin.

9. A bobbin Winding machine, having, in combination, a frame, a bushing secured in the frame, a driving shaft journaled in the bushing, a rotary disk member and a rotary shell member one of Which is secured to said driving shaft, a bracket secured to said bushing, a Winding shaft secured to the other of said members, a carrier for the latter member and the Winding shaft mounted on said bracket for movement to carry the latter member into and out of driving engagement with the other member, and devices for controlling the position of the carrier mounted on the bracket.

l0. A bobbin Winding machine having, in combination, a Winding shaft, driving connections therefor comprising a rotary disk member, a rotary shell member closely embracing and substantially concentric with said disk member, a pivoted carrier for supporting one of said members for movement 'radially to carry the same into and out of driving contact with the other member, and means for controlling the swinging movement of the carrier.

1l. A bobbin Winding machine having, in combination, a Winding shaft, driving connections therefor comprising` a rotary disk member, a rotary shell member closely embracing and substantially concentric With said disk member, a carrier on which one of said members is journaled mounted for movement radially to carry the latter member into and out of driving contact with the other member, and means for controlling the position of the carrier.

l2. A bobbin Winding machine having, in combination, a Winding shaft, driving connections therefor comprising rotary driving and driven members, a carrier upon which one of said members is journaled mounted for movement to carry the same into and out ot driving contact with the other member, a latch acting on the carrier, a spring intermediate the latch and the carrier to hold the member which is j ournaled on the carrier in yielding engagement With the other member, and means for controlling the latch.

HARRY D. ELLIOTT. 

